Hall of Gemstone

World Enchantment

$13.75 #14222 1.12 30.0 years

At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.

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Cards similar to Hall of Gemstone expected a card that isn't here?

Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.

Pulse of Llanowar73%

$0.28↓#26606↓0.29↓26.0 years↓

"If a basic land you control is tapped for mana, it produces mana of a color of your choice instead of any other type."

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Orochi Leafcaller72%

$0.32↓#143910.26↓22.1 years↓

: Add one mana of any color."

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Signpost Scarecrow72%

$0.14↓#19092↓0.00↓7.0 years↓

: Add one mana of any color."

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Viridian Acolyte72%

$0.12↓#26347↓0.00↓22.7 years↓

: Add one mana of any color."

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Mana Cylix72%

$0.09↓#22040↓0.00↓25.7 years↓

: Add one mana of any color."

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Celestial Prism72%

$0.17↓#30447↓0.06↓33.2 years↑

: Add one mana of any color."

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Scarecrow Guide71%

$0.24↓#149420.00↓3.1 years↓

: Add one mana of any color. Activate only once each turn."

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Salvaged Manaworker71%

$0.13↓#24238↓0.21↓4.1 years↓

: Add one mana of any color. Activate only once each turn."

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Llanowar Envoy71%

$0.18↓#26117↓0.13↓8.5 years↓

: Add one mana of any color."

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Nomadic Elf71%

$0.14↓#27926↓0.00↓26.0 years↓

: Add one mana of any color."

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Helionaut70%

$0.14↓#31397↓0.00↓25.4 years↓

: Add one mana of any color."

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Harvest Mage70%

$0.09↓#29657↓0.00↓26.7 years↓

, Discard a card: Until end of turn, if you tap a land for mana, it produces one mana of a color of your choice instead of any other type and amount."

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